Sand Washing, Dewatering, and Recycling Integrated Machine

The sand washing and recycling integrated machine combines water washing with fine sand dewatering and recycling. It is also known as the sand washing and recycling integrated machine, the fine sand recycling and dewatering integrated machine, or mud and sand washing and separating equipment. This unit cleverly integrates the with the , featuring a rational structure, a compact footprint, and lower investment costs compared to purchasing two separate pieces of equipment.

1. Function Introduction

The sand washing and recycling integrated machine consists primarily of a sand washing section and a fine sand recovery section. The sand washing section performs the same functions as a standard wheel sand washer, handling water washing, dewatering, and desliming. The recovery section can be customized according to customer requirements: for fine sand recycling needs, it can be connected to a standard fine sand recycling system; for fine sand dewatering and recycling, it can be linked to a dewatering fine sand recycling machine. To achieve different sand production outcomes, a multi-layer dewatering screen can also be configured.

2. Working Principle

1) Structural Composition

The system comprises a high-pressure separator, dewatering screen, impeller separator, reducer, vacuum high-pressure pump, cleaning tank, elevated return tank, motor, vibration motor, and other key components.

2) Workflow

The sand-water mixture enters the cleaning box, where it is separated by the impeller separator before moving to the lower dewatering screen for dehydration treatment. Wastewater containing significant amounts of fine sand, mud, dust, and other impurities overflows from the cleaning box and is transported to the high-pressure separator via the vacuum high-pressure pump. Subsequently, fine sand that has undergone centrifugal classification and concentration is discharged onto the upper layer of the dewatering screen through the sedimentation nozzle. Meanwhile, wastewater, mud, dust, and impurities within the cleaning tank are expelled through the overflow of the high-pressure separator into the elevated return tank. The final output consists of coarse sand recovered from the upper layer and fine sand from the lower layer, or a blended mix of both, adjustable according to specific requirements.

3. Features and Advantages

1) By integrating the strengths of a and a , this unit delivers comprehensive sand washing, fine sand dewatering, and recycling capabilities. It offers superior cleaning performance compared to traditional sand washers, resulting in higher-quality sand at a competitive price point.

2) The all-in-one design ensures higher operational efficiency, low energy consumption, and enhanced environmental sustainability.

3) Featuring a compact structure with a small footprint, it allows for simple installation and requires lower initial investment than purchasing two separate pieces of equipment.

4) Built for durability, the machine offers a long service life with minimal maintenance costs.

5) Custom models can be tailored to meet specific project requirements.

4. Workflow

1) Once the material enters the cleaning box, it tumbles under the drive of the sand washing wheel to ensure full contact with water for thorough cleaning. Simultaneously, spray pipes located on the upper part of the wheel inject water to promptly remove impurities and foreign objects with low specific gravity. The processed materials are then conveyed to the rear-end dewatering screen as they tumble off the sand washing wheel. After excess water is removed, the final product is discharged onto the conveyor belt via the discharge port.

2) Wastewater overflowing from the cleaning box (containing significant amounts of fine sand, mud, dust, and other impurities) is transported by a vacuum high-pressure pump to a cyclone for centrifugal classification and concentration. Fine sand is discharged through the sand settling nozzle onto the upper layer of the dewatering screen for dehydration treatment. The remaining wastewater (containing mud, dust, and other impurities) overflows from the cyclone into the high-level return tank.

5. Product Application

The sand washing section performs the same functions as a standard wheel sand washer, handling water washing, dewatering, and desliming. The recovery section can be customized to meet specific customer requirements. For fine sand recovery, it can be integrated with a standard fine sand recovery system. For dewatering and recycling of sand, it can be connected to a dewatering fine sand recycling machine.

6. Extending Service Life and Maintenance Guidelines

Investing in a sand washing and recycling machine represents a significant capital expenditure for our customers. However, neglecting maintenance can lead to operational issues and drastically shorten the equipment’s service life during prolonged use, contradicting the initial purpose of purchasing an integrated sand washing, dewatering, and recycling machine. Every customer aims to maximize equipment longevity and revenue generation. So, how can we extend the service life of the sand washing and recycling integrated machine?

1) Always check the oil level in the reducer of the , the tightness of the V-belt, gear meshing and smooth operation, and whether connecting fasteners are loose to ensure the machine operates normally and stably. Friction parts must be adequately lubricated, with grease applied regularly.

2) Replace the lubricating oil in the reducer one month after the initial fill. Filter the oil before refilling. Use a higher-grade lubricating oil in southern regions compared to northern ones.

3) During normal use, treat the with care, paying close attention to its maintenance, inspection, and cleaning.